TWM623623U - Composite reverse projection screen - Google Patents
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- TWM623623U TWM623623U TW110211272U TW110211272U TWM623623U TW M623623 U TWM623623 U TW M623623U TW 110211272 U TW110211272 U TW 110211272U TW 110211272 U TW110211272 U TW 110211272U TW M623623 U TWM623623 U TW M623623U
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Abstract
本創作複合型反射式投影銀幕包含一支撐層、一第一導光層、一第二導光層、一反射層及多數吸收膜,第一導光層、支撐層、第二導光層及反射層依序排列,第二導光層具有多數分別具傾斜反射面之微稜鏡單元,吸收膜分別設於每二相鄰的反射面之間,當投影機對複合型反射式投影銀幕投影時,第一導光層能將投射之光線向兩側分散以提升光線之均勻性,以提升兩側之影像的清晰度,而有效增加觀看範圍,反射層能將自傾斜方向入射的光線向前方反射,以增加影像的亮度,並透過反射層與吸收膜形成明暗對比,且吸收膜能吸收環境光線,而能有效提升影像之清晰度。The composite reflective projection screen of this creation includes a support layer, a first light guide layer, a second light guide layer, a reflection layer and a plurality of absorbing films, a first light guide layer, a support layer, a second light guide layer and The reflective layers are arranged in sequence, the second light guide layer has a plurality of micro-mirror units with inclined reflective surfaces respectively, and the absorbing films are respectively arranged between every two adjacent reflective surfaces. When the projector projects on the composite reflective projection screen At the same time, the first light guide layer can disperse the projected light to both sides to improve the uniformity of the light, so as to improve the clarity of the images on both sides, and effectively increase the viewing range. Front reflection to increase the brightness of the image, and through the reflection layer and the absorption film to form a light and dark contrast, and the absorption film can absorb ambient light, which can effectively improve the clarity of the image.
Description
本創作係一種複合型反射式投影銀幕,尤指能將光線均勻反射之複合型反射式投影銀幕。This creation is a composite reflective projection screen, especially a composite reflective projection screen that can reflect light evenly.
隨著科技的進步,人們除了能透過顯示器觀看電視節目、電影或資料,也會利用一投影機將影像投影至空白的牆面上,所述投影機透過內部裝設之光源發出光線的方式而向前方之投射區投影,當將所述投影機之投射區對著牆面時,即能將影像投影至牆面,供觀看者檢視牆面上的影像。With the advancement of technology, people can not only watch TV programs, movies or materials through monitors, but also use a projector to project images onto a blank wall. The projector emits light through a light source installed inside. Projecting to the forward projection area, when the projection area of the projector is facing the wall, the image can be projected onto the wall for the viewer to view the image on the wall.
其中,有許多人會在所述投影機之投射區設置一高反射投影銀幕,所述高反射投影銀幕反射光線的效果優於一般牆面,而能提升影像的亮度,因此透過所述高反射投影銀幕之呈現,觀看者就能觀看到較為清晰的影像,惟當周遭環境之光線照射到所述高反射投影銀幕上時,會影響高反射投影銀幕上呈現的影像,造成影像的清晰度及對比度下降,因此,投影機需發出亮度較強的光線以投射影像,才能避免高反射投影銀幕上的影像受環境中之光線干擾。Among them, many people will set a high-reflection projection screen in the projection area of the projector. The effect of reflecting light from the high-reflection projection screen is better than that of ordinary walls, and it can improve the brightness of the image. When the projection screen is presented, the viewer can watch a relatively clear image, but when the light from the surrounding environment shines on the high-reflection projection screen, it will affect the image presented on the high-reflection projection screen, resulting in the clarity of the image and the high-reflection projection screen. The contrast ratio is reduced, so the projector needs to emit bright light to project the image, in order to avoid the image on the highly reflective projection screen from being disturbed by the light in the environment.
然而,如圖11所示,由於所述投影機90發出的光線集中投射在所述高反射投影銀幕80之中央,且所述高反射投影銀幕80反射之光線不均勻,因此當光線之亮度較強時,會在所述高反射投影銀幕80的中央部分形成一亮區81,而影響觀看效果,並造成位於所述高反射投影銀幕80之兩側部分的亮度較低且影像較為模糊,因此位於所述高反射投影銀幕80之兩側的觀看者亦不容易看清楚高反射投影銀幕80上的影像,造成所述高反射投影銀幕80能提供觀看者之觀看視角較窄。However, as shown in FIG. 11 , since the light emitted by the
此外,如圖12所示,由於所述高反射投影銀幕80於設置時係垂直於地面,且其對光線之入射角約等於反射角,因此當置於桌上或地面上的投影機90自所述高反射投影銀幕80之前側下方投射光線,而光線自高反射投影銀幕80反射時,有部分光線會向上方反射,並於天花板上形成一亮帶91,導致無法有效利用投影光線,而影響高反射投影銀幕80之亮度,因此,所述高反射投影銀幕仍有改善的空間。In addition, as shown in FIG. 12 , since the high-
本創作之主要目的在於提供一複合型反射式投影銀幕,希望能藉此改善現今之高反射投影銀幕反射之光線的均勻性較差,造成提供之觀看視角較窄,且當投影機自所述高反射投影銀幕之前側下方投射光線時,會導致無法有效利用投影光線,而影響所述高反射投影銀幕之觀看效果等問題。The main purpose of this creation is to provide a composite reflective projection screen, hoping to improve the uniformity of the light reflected by the current high-reflection projection screen, resulting in a narrow viewing angle, and when the projector is from the high When light is projected on the lower side of the front side of the reflection projection screen, the projection light cannot be effectively utilized, which affects the viewing effect of the high reflection projection screen.
為達成前揭目的,本創作複合型反射式投影銀幕界定有相互垂直之一第一軸向、一第二軸向及一第三軸向,該第三軸向具有相對之一入光側及一背側,所述複合型反射式投影銀幕包含: 一支撐層; 一第一導光層,其位於該支撐層之入光側,並包含有沿該第二軸向間隔排列之多數導光單元,每一導光單元包含一主柱體及二側柱體,該二側柱體係相對設置於該主柱體之兩側,該主柱體及該二側柱體能折射光線; 一第二導光層,其位於該支撐層之背側,並具有沿該第一軸向排列之多數微稜鏡單元,該多數微稜鏡單元分別形成一反射面,該反射面相對該第一軸向傾斜設置; 一反射層,其形成於該第二導光層之背側;及 多數吸收膜,該多數吸收膜位於該第二導光層及該反射層之間,並分別形成於每二相鄰的微稜鏡單元之反射面之間。 In order to achieve the purpose of the previous disclosure, the composite reflective projection screen of the present invention defines a first axis, a second axis and a third axis that are perpendicular to each other, and the third axis has an opposite light incident side and a On the back side, the composite reflective projection screen includes: a support layer; a first light guide layer, which is located on the light incident side of the support layer, and includes a plurality of light guide units spaced along the second axis, each light guide unit includes a main cylinder and two side cylinders, The two-side column system is oppositely arranged on both sides of the main column body, and the main column body and the two-side column body can refract light; a second light guide layer, which is located on the back side of the support layer, and has a plurality of microchip units arranged along the first axis, the plurality of microchip units respectively form a reflecting surface, and the reflecting surface is opposite to the first An axial inclined setting; a reflective layer formed on the backside of the second light guide layer; and A plurality of absorbing films, the plurality of absorbing films are located between the second light guide layer and the reflective layer, and are respectively formed between the reflective surfaces of every two adjacent microchip units.
本創作複合型反射式投影銀幕能用以供一投影機投影,所述投影機投射之光線於穿透該第一導光層時會折射,當射入第二導光層之微稜鏡單元而抵達該反射層時,該反射層會將光線反射,使用者能透過所述複合型反射式投影銀幕觀看影像。The composite reflective projection screen of the present invention can be used for projection by a projector. The light projected by the projector will be refracted when it penetrates the first light guide layer, and when it enters the micro-chip unit of the second light guide layer When reaching the reflective layer, the reflective layer will reflect the light, and the user can watch the image through the composite reflective projection screen.
其中,所述複合型反射式投影銀幕具備有以下優點: 1.能提升反射之光線的均勻性:透過該多數導光單元的結構設計,當所述投影機將光線自所述入光側投射至該第一導光層時,該多數導光單元能將集中在所述複合型反射式投影銀幕之中央部分的光線折射而分散,因此當光線被該反射層反射時,會分散至所述複合型反射式投影銀幕之兩側部分,而能有效提升光線的均勻性,由於光線的均勻性提升,使得所述複合型反射式投影銀幕之兩側部分的光線之亮度提高,因此能提升呈現之影像的清晰度,並藉此增加使用者之觀看視角的範圍。 2.能提升影像之對比度:透過該多數吸收膜分別形成於每二相鄰的微稜鏡單元之反射面之間的設計,當光線發射至該多數微稜鏡單元之反射面時會被該反射層反射,而當光線發射至該多數吸收膜時,大部分的光線會被吸收,藉此產生光線之明暗差異,能提升所述複合型反射式投影銀幕呈現的影像之對比度,且所述吸收膜亦能吸收環境光線,以提升使用者觀看之影像的清晰度。 3.能提升影像之亮度:當所述投影機對所述複合型反射式投影銀幕投射光線時,透過該多數微稜鏡單元之反射面為傾斜設置的結構設計,位於所述反射面之背側的該反射層能將自傾斜方向入射的光線向所述複合型反射式投影銀幕之前方反射,因此能避免光線反射至其他地方,而能有效利用光線,並增加呈現之影像的亮度,而能提升使用者觀看到的影像之清晰度,以提升使用者之觀看體驗。 The composite reflective projection screen has the following advantages: 1. Can improve the uniformity of reflected light: through the structural design of the majority of light guide units, when the projector projects light from the light incident side to the first light guide layer, the majority of light guide units can The light concentrated in the central part of the composite reflective projection screen is refracted and dispersed, so when the light is reflected by the reflective layer, it will be dispersed to both sides of the composite reflective projection screen, which can effectively improve The uniformity of the light, due to the improvement of the uniformity of the light, makes the brightness of the light on the two sides of the composite reflective projection screen increase, so it can improve the clarity of the displayed image and thereby increase the viewing angle of the user. range. 2. It can improve the contrast of the image: through the design of the plurality of absorbing films formed between the reflective surfaces of each two adjacent microchip units, when the light is emitted to the reflective surfaces of the plurality of microchip units, it will be absorbed by the The reflective layer reflects, and when the light is emitted to the majority of the absorbing films, most of the light will be absorbed, thereby generating the difference between light and dark, which can improve the contrast of the image presented by the composite reflective projection screen, and the The absorbing film can also absorb ambient light to improve the clarity of the image viewed by the user. 3. It can improve the brightness of the image: when the projector projects light on the composite reflective projection screen, the reflective surfaces passing through the majority of the micro-mirror units are designed with an inclined structure, located on the back of the reflective surface. The reflective layer on the side can reflect the light incident from the oblique direction to the front of the composite reflective projection screen, so that the light can be prevented from being reflected to other places, the light can be effectively utilized, and the brightness of the displayed image can be increased, and It can improve the clarity of the image viewed by the user, so as to enhance the viewing experience of the user.
請參閱圖1至圖7,為本創作複合型反射式投影銀幕之多種較佳實施例,其界定有相互垂直之一第一軸向D1及一第二軸向D2及第三軸向D3,該第三軸向D3具有相對之一入光側及一背側,所述複合型反射式投影銀幕包含一支撐層10、一第一導光層20、一第二導光層30、一反射層40及多數吸收膜50。Please refer to FIG. 1 to FIG. 7 , which are various preferred embodiments of the composite reflective projection screen, which define a first axis D1, a second axis D2 and a third axis D3 that are perpendicular to each other, The third axis D3 has an opposite light incident side and a back side. The composite reflective projection screen includes a
另外,為便於說明所述複合型反射式投影銀幕,於圖式中標示有上方、下方、左方、右方、前方及後方之六個方向,所述第一軸向D1係平行於上下之方向;所述第二軸向D2係平行於左右之方向;所述第三軸向D3係平行於前後之方向,所述入光側係於前方;所述背側係於後方,其中,該支撐層10、該第一導光層20及該第二導光層30之材質能為透明或半透明,並能透光,且該支撐層10、該第一導光層20及該第二導光層30能由同一基材製成。In addition, in order to facilitate the description of the composite reflective projection screen, six directions of upper, lower, left, right, front and rear are marked in the drawings, and the first axis D1 is parallel to the upper and lower directions. The second axial direction D2 is parallel to the left and right direction; the third axial direction D3 is parallel to the front and rear direction, the light incident side is in the front; the back side is in the rear, wherein the The materials of the supporting
如圖1及圖2所示,該第一導光層20位於該支撐層10之入光側,並包含有沿該第二軸向D2間隔排列之多數導光單元21,每一導光單元21包含一主柱體22及二側柱體23,該二側柱體23係相對設置於該主柱體22之兩側,該主柱體22及該二側柱體23能折射光線。As shown in FIG. 1 and FIG. 2 , the first
如圖3至圖5所示,該多數導光單元21之主柱體22具有一主導光面221,該主導光面221係位於該主柱體22之入光側,該主導光面221呈弧狀,且該主導光面221之表面能為粗糙面,較佳地,該主導光面221呈圓弧面,且半徑係小於等於40微米。As shown in FIG. 3 to FIG. 5 , the
另外,如圖3及圖4所示,該多數導光單元21之側柱體23a, 23b具有依序連接之一底面231、一側導光面232及一連接面233,所述側柱體23a, 23b之底面231位於該支撐層10,該側導光面232能呈弧狀或平面狀,該連接面233與該底面231之間形成有一第一夾角θ1,且該側導光面232及該連接面233能為粗糙面。In addition, as shown in FIG. 3 and FIG. 4 , the
其中,如圖3所示,當該側導光面232呈弧面時,所述側柱體23a為具有弧面之一柱體,較佳地,該側導光面232呈圓弧面,且半徑係小於等於40微米;另如圖4所示,當該側導光面232呈平面時,所述側柱體23b為一三角柱體。Wherein, as shown in FIG. 3, when the side
此外,於所述支撐層10上,包含有所述側柱體23a之導光單元21或包含所述側柱體23b之導光單元21能呈相鄰排列,或能呈不連續排列。In addition, on the
如圖5所示,每二相鄰的導光單元21之間能形成一間隔距離,且每二相鄰的導光單元21之間的間隔距離能相等或不相等,舉例來說,所述間隔距離L1之長度及所述間隔距離L2之長度不相等,再者,所述間隔距離能隨所述相鄰的導光單元21於所述複合型反射式投影銀幕之位置變化而改變,所述間隔距離之改變形式能呈等差、不等差、等比或不等比。As shown in FIG. 5 , a separation distance can be formed between every two adjacent
如圖3至圖5所示,所述側柱體23a, 23b之第一夾角θ1之角度範圍較佳地是介於60度至90度之間,並包含端點值,該多數導光單元21之側柱體23a, 23b的第一夾角θ1能隨該多數導光單元21於所述複合型反射式投影銀幕之位置變化而改變。As shown in FIG. 3 to FIG. 5, the angle range of the first included angle θ1 of the
如圖1、圖6及圖7所示,該第二導光層30位於該支撐層10之背側,並具有沿該第一軸向D1排列之多數微稜鏡單元31,該多數微稜鏡單元31分別具有一反射面311,該反射面311相對該第一軸向D1傾斜設置,此外,該多數微稜鏡單元31能間隔設置或相鄰設置,且能為一體成形之設計。As shown in FIG. 1 , FIG. 6 and FIG. 7 , the second
其中,每一微稜鏡單元31具有一基面312及一吸收面313,該基面312位於該支撐層10,每一微稜鏡單元31之反射面311及基面312之間形成有一第二夾角θ2,該吸收面313連接該反射面311,且該吸收面313能連接相鄰之微稜鏡單元31的反射面311,較佳地,所述第二夾角θ2之角度範圍介於5度至40度之間,包含端點值。Wherein, each
再者,該多數微稜鏡單元31之第二夾角θ2能隨該多數微稜鏡單元31於所述複合型反射式投影銀幕之位置變化而改變,於本創作之較佳實施例中,如圖10所示,該多數微稜鏡單元31之第二夾角θ2的角度由下方向上方漸增。Furthermore, the second included angle θ2 of the plurality of
如圖1、圖2、圖6及圖7所示,該反射層40形成於該第二導光層30之背側,當光線發射至所述微稜鏡單元31之反射面311時,所述反射層40由反射材料構成,會被位於所述反射面311之背側的該反射層40反射。As shown in FIG. 1 , FIG. 2 , FIG. 6 and FIG. 7 , the
如圖1、圖2、圖6及圖7所示,該多數吸收膜50位於該第二導光層30及該反射層40之間,並分別形成於每二相鄰的微稜鏡單元31之反射面311之間,另外,該反射層40於該入光側之形狀係對應該多數微稜鏡單元31及該多數吸收膜50。As shown in FIG. 1 , FIG. 2 , FIG. 6 and FIG. 7 , the plurality of absorbing
其中,該多數吸收膜50分別界定有一第一吸收區51及一第二吸收區52,每一吸收膜50之該第一吸收區51位於每一微稜鏡單元31之部分的反射面311,該第二吸收區52位於相鄰的微稜鏡單元31之吸收面313,該多數吸收膜50能吸收光線,較佳地,該多數吸收膜50由黑色材料構成,以提升吸收光線之效果。The plurality of absorbing
此外,如圖7所示,於本創作之第二種較佳實施例中,所述複合型反射式投影銀幕能包含一保護層60,該保護層60設置於該反射層40之背側。In addition, as shown in FIG. 7 , in the second preferred embodiment of the present invention, the composite reflective projection screen can include a
本創作複合型反射式投影銀幕能供一投影機70以投射光線的方式投影,而能呈現影像,所述投影機70投射之光線於穿透該第一導光層20會折射,此時,部分光線會被所述導光單元21反射,而部分光線會穿過該支撐層10及該第二導光層30之微稜鏡單元31,並會被所述微稜鏡單元31之反射面311背側的該反射層40反射,使用者能透過所述複合型反射式投影銀幕觀看影像。The composite reflective projection screen of the present invention can be projected by a
如圖8所示,當所述投影機70發出的光線自所述入光側入射至該第一導光層20之導光單元21時,光線會被該多數導光單元21折射,並有部分光線被反射,其中,由於所述導光單元21會隨著分布於本創作上的不同位置,而接收到不同角度的光線,並使光線產生不同的折射及反射路徑,且一個所述導光單元21的主柱體22及側柱體23亦會分別將光線朝不同方向折射及反射,因此,為了便於說明不同位置的導光單元21對光線路徑之影響,遂將本創作之入光側有光線射出的區域由左至右依序界定為一左方區間C、一左前區間B、一中央區間A、一右前區間D及一右方區間E。As shown in FIG. 8 , when the light emitted by the
請參閱圖9A,為位於本創作之中央部分的導光單元21,如圖8及圖9A所示,當光線發射至所述導光單元21時,該主柱體22能將入射該主導光面221的光線經折射後向所述中央區間A射出;位於所述導光單元21之左方的側柱體23能將入射該側導光面232之光線向所述左前區間B射出,並將入射至該連接面233之光線向所述右方區間E射出;位於所述導光單元21之右方的側柱體23能將入射該側導光面232之光線向所述右前區間D射出,並將入射至該連接面233之光線向所述左方區間C射出。Please refer to FIG. 9A , which is the
請參閱圖9B,為位於本創作之中央偏左方部分的導光單元21,如圖8及圖9B所示,當光線發射至所述導光單元21時,該主柱體22能使入射至該主導光面221的光線經折射後向所述左前區間B射出;位於所述導光單元21之左方的側柱體23能使入射至該側導光面232之光線向所述中央區間A及所述左前區間B射出,位於所述導光單元21之右方的側柱體23能使入射至該連接面233之光線向所述左方區間C射出。Please refer to FIG. 9B , which is the
請參閱圖9C,為位於本創作之左方部分的導光單元21,如圖8及圖9C所示,當光線發射至所述導光單元21時,該主柱體22能使入射至該主導光面221的光線經折射後向所述左方區間C射出,位於所述導光單元21之左方的側柱體23能使入射至該側導光面232之光線向所述左前區間B及所述右方區間E射出,位於所述導光單元21之右方的側柱體23能使入射至該側導光面232之光線向所述左前區間B射出。Please refer to FIG. 9C , which is the
另外,於本創作之較佳實施例中,如圖8所示,由於本創作之導光單元21係左右對稱地分布,因此中央偏右部分的導光單元21會使光線產生與中央偏左部分的導光單元21對稱的路徑;而位於右方部分的導光單元21則會使光線產生與左方部分的導光單元21對稱的路徑,藉此,本創作透過該多數導光單元21之結構及分布位置之設計,使光線能平均地分散至本創作之入光側的中央區間A、左前區間B、左方區間C、右前區間D及右方區間E,而能提升呈現之影像的清晰度,藉此有效增加使用者觀看之視角範圍。In addition, in the preferred embodiment of the present invention, as shown in FIG. 8 , since the
此外,如圖8及圖9A~9C所示,於本創作之較佳實施例中,該多數導光單元21之側柱體23的第一夾角θ1係由中央向左右兩側遞增,位於本創作之中央部分的導光單元21之第一夾角θ1的角度較小,即較接近60度;位於左方的所述導光單元21之第一夾角θ1的角度較大,即較接近90度;而位於中央偏左方的所述導光單元21之側柱體23之第一夾角θ1的角度居中,藉由所述導光單元21於不同位置時所述第一夾角θ1之角度的變化,進一步使所述複合型反射式投影銀幕反射之光線有較佳的均勻性。In addition, as shown in FIG. 8 and FIGS. 9A-9C, in the preferred embodiment of the present invention, the first included angle θ1 of the
如圖10所示,當所述投影機70之光線自傾斜的方向投射至所述複合型反射式投影銀幕,並穿透該支撐層10而入射至該第二導光層30之微稜鏡單元31時,光線會被該多數微稜鏡單元31之反射面311後方的該反射層40反射,透過所述微稜鏡單元31之結構設計,使光線向前方射出,而能提升光線之反射效果,藉此有效增加所述複合型反射式投影銀幕呈現之影像的亮度及均勻性,而能提升使用者觀看到的影像之清晰度,以提升使用者之觀看體驗。As shown in FIG. 10 , when the light from the
其中,於本創作之較佳實施例中,當所述投影機70係位於所述複合型反射式投影銀幕之前側下方時,所述微稜鏡單元31之反射面311及基面312之間的第二夾角θ2能由下方向上方漸增,而該反射層40係位於該多數微稜鏡單元31之反射面311的背側,並對應該多數微稜鏡單元31的形狀,因此,藉由所述第二夾角θ2之角度變化的設計,當所述投影機70投射之光線入射到該多數微稜鏡單元31之反射面311時,該反射層40能將不同入射方向的光線分別向前方反射,以進一步提升影像之亮度。Wherein, in the preferred embodiment of the present invention, when the
另外,如圖6所示,若所述投影機70投射之光線照射到該多數吸收膜50時,大部分的光線會被吸收,因此,藉由每二相鄰的微稜鏡單元31的反射面311之間形成有所述吸收膜50,且所述吸收膜50之第一吸收區51位於部分的所述反射面311之設計,當光線投射至每一微稜鏡單元31的反射面311上之所述第一吸收區51時,即會被吸收,而當光線投射至所述反射層40時會被反射,因此,該多數吸收膜50與該反射層40會形成交錯的明暗差異,使得所述複合型反射式投影銀幕呈現的影像之對比度提升,而能有效提升影像的清晰度。In addition, as shown in FIG. 6 , if the light projected by the
再者,當本創作之建置環境中有光線自所述入光側的上方投射向所述複合型反射式投影銀幕時,由於所述第二吸收區52位於所述微稜鏡單元31之吸收面313,而能吸收投射至所述吸收面313的光線,藉此減少環境光線對本創作呈現影像之影響,有效提升影像之清晰度。Furthermore, when light is projected to the composite reflective projection screen from above the light incident side in the construction environment of the present creation, since the
此外,於本創作複合型反射式投影銀幕之第二種較佳實施例中,所述複合型反射式投影銀幕能掛在牆面上使用,此時,該保護層60能用以保護該反射層40,以避免該反射層40因與牆面摩擦而受到影響,當將所述複合型反射式投影銀幕捲起收納時,該保護層60能阻隔該第一導光層20及該反射層40,藉此避免該第一導光層20及該反射層40相互摩擦而發生影響。In addition, in the second preferred embodiment of the composite reflective projection screen of the present invention, the composite reflective projection screen can be hung on the wall for use. At this time, the
綜上所述,本創作複合型反射式投影銀幕能供使用者透過所述投影機70投影而觀看影像,該第一導光層20之導光單元21能將投射之光線向兩側分散,以提升光線之均勻性,並能提升位於兩側之影像的清晰度而有效提升觀看範圍,透過該多數微稜鏡單元31之傾斜設置的反射面311,該反射層40能將自傾斜方向入射的光線向前方反射,以提升使用者之眼睛能接收到的光線,且該多數吸收膜50會與該反射層40形成明暗對比,並能吸收環境光線,藉此,所述複合型反射式投影銀幕能有效提升使用者之觀看體驗。To sum up, the composite reflective projection screen of the present invention can allow users to view images through the projection of the
10:支撐層
20:第一導光層
21:導光單元
22:主柱體
221:主導光面
23,23a,23b:側柱體
231:底面
232:側導光面
233:連接面
30:第二導光層
31:微稜鏡單元
311:反射面
312:基面
313:吸收面
40:反射層
50:吸收膜
51:第一吸收區
52:第二吸收區
60:保護層
70:投影機
D1:第一軸向
D2:第二軸向
D3:第三軸向
L1,L2:間隔距離
θ1:第一夾角
θ2:第二夾角
A:中央區間
B:左前區間
C:左方區間
D:右前區間
E:右方區間
80:投影銀幕
81:亮區
90:投影機
91:亮帶10: Support layer
20: The first light guide layer
21: Light guide unit
22: Main cylinder
221: Dominant
圖1:為本創作複合型反射式投影銀幕之第一種較佳實施例之部分立體示意圖。 圖2:為本創作複合型反射式投影銀幕之第一種較佳實施例之俯視平面示意圖。 圖3:為本創作複合型反射式投影銀幕之導光單元之第一種實施態樣之俯視平面示意圖。 圖4:為本創作複合型反射式投影銀幕之導光單元之第二種實施態樣之俯視平面示意圖。 圖5:為本創作複合型反射式投影銀幕之第一導光層之局部放大平面示意圖。 圖6:為本創作複合型反射式投影銀幕之第一種較佳實施例之側視平面示意圖。 圖7:為本創作複合型反射式投影銀幕之第二種較佳實施例之側視平面示意圖。 圖8:為本創作複合型反射式投影銀幕反射光線分布之示意圖。 圖9A:為本創作複合型反射式投影銀幕之分布於本創作之中央部分的導光單元折射光線之示意圖。 圖9B:為本創作複合型反射式投影銀幕之分布於本創作之中央偏左部分的導光單元折射光線之示意圖。 圖9C:為本創作複合型反射式投影銀幕之分布於本創作之左方部分的導光單元折射光線之示意圖。 圖10:為本創作複合型反射式投影銀幕之反射層反射光線之示意圖。 圖11:為習知高反射投影銀幕供投影機投影時於中央部分形成亮區之示意圖。 圖12:為習知高反射投影銀幕供投影機投影時將光線反射至天花板而形成亮帶之示意圖。 FIG. 1 is a partial perspective view of the first preferred embodiment of the composite reflective projection screen created by the present invention. FIG. 2 is a schematic top plan view of the first preferred embodiment of the composite reflective projection screen created by the present invention. FIG. 3 is a schematic top plan view of the first implementation of the light guide unit of the composite reflective projection screen. FIG. 4 is a schematic top plan view of the second embodiment of the light guide unit for the creation of a composite reflective projection screen. Figure 5 is a partial enlarged plan view of the first light guide layer of the composite reflective projection screen created by the present invention. FIG. 6 is a schematic side plan view of the first preferred embodiment of the composite reflective projection screen created by the present invention. FIG. 7 is a schematic side plan view of the second preferred embodiment of the composite reflective projection screen created by the present invention. Figure 8: A schematic diagram of the distribution of reflected light on the composite reflective projection screen created by the present invention. FIG. 9A is a schematic diagram of the refraction of light by the light guide units distributed in the central part of the present creation of the composite reflective projection screen. FIG. 9B is a schematic diagram of the refraction of light rays by the light guide units distributed in the left-center part of the center of the present creation of the composite reflective projection screen. FIG. 9C is a schematic diagram of the refraction of light by the light guide units distributed in the left part of the present creation of the composite reflective projection screen. Figure 10 is a schematic diagram of light reflected by the reflective layer of the composite reflective projection screen of the present creation. FIG. 11 is a schematic diagram illustrating a bright area formed in the central portion of a conventional high-reflection projection screen for projection by a projector. FIG. 12 is a schematic diagram of a conventional high-reflection projection screen that reflects light to the ceiling to form a bright band when the projector is used for projection.
10:支撐層 10: Support layer
20:第一導光層 20: The first light guide layer
21:導光單元 21: Light guide unit
22:主柱體 22: Main cylinder
23:側柱體 23: Lateral column
30:第二導光層 30: Second light guide layer
31:微稜鏡單元 31: Microscope unit
311:反射面 311: Reflective surface
312:基面 312: base plane
313:吸收面 313: Absorbing Surface
40:反射層 40: Reflective layer
50:吸收膜 50: Absorbent film
D1:第一軸向 D1: the first axis
D2:第二軸向 D2: The second axis
D3:第三軸向 D3: The third axis
Claims (10)
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TW110211272U TWM623623U (en) | 2021-09-24 | 2021-09-24 | Composite reverse projection screen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW110211272U TWM623623U (en) | 2021-09-24 | 2021-09-24 | Composite reverse projection screen |
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Publication Number | Publication Date |
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TWM623623U true TWM623623U (en) | 2022-02-21 |
Family
ID=81324680
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2021
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